Fuse mechanism for projectiles



FUSE MECHANISM FOR PROJECTILES Filed April 20.' 1933 Patented May 22, 1934 UNITED STATES FUSE MECHANISM FOR PROJECTILES Andr Varau'd, Geneva, Switzerland Application April 20, 1 In Switzerland 1 Claim.

The present invention relates to a mechanical centrifugal fuse of the type in which locking means are provided between the regulating ring for the timing and the body of the fuse.

These locking means may be of any kind and comprise wedges, plungers, toothed slides etc.

In such fuses, as also in all existing fuses the rotary governing member of the time percussor or disk has hitherto been frictionally mounted on a central shaft of the fuse actuated by a centrifugally movable sector or sectors. This method of mounting leads to de-regulation which the means for locking between the regulating ring and the body of the fuse cannot prevent. From this fact the said locking means become if not inoperative at least of doubtful utility.

For the purpose of rectifying this inconvenience the fuse of the present invention is provided with a timing disk connected with the central shaft which participates from this fact in the movement of rotation of the regulating cap.

The connection between the timing disk and the central shaft may be obtained by any known or mechanical means, in particular by providing the central shaft with a square boss on which the timing disk is fixed.

The annexed drawing shows by way of example a form of construction of the invention.

The single figure of the drawing is a partial section in elevation of a fragment of a fuse, the section being taken through the longitudinal axis thereof.

933, Serial No. 667,117

April 30, 1932 The drawing represents a partial section of a mechanical centrifugal fuse on which the principal parts referred to are shown. Of these, l indicates the regulating ring with its cap 2, 3 the body of the fuse, 4 the locking means constituted in this 60 example by toothed slides co-operating with a toothed crown, 5 the timing disk and 6 the central shaft.

Rotation of the regulating ring 1 for timing purposes causes by means of the stirrup '7, the 65 tenon 8 and the case 9 driving the satellite 10, the rotation of the timing disk 5 driven by the intermediary of the teeth 11. As can be understood the intermediary of a square 12 in such a way that this shaft 70 6 definitely participates properly in the movement of the regulating ring 1 and its cap 2.

What 1 claim as my invention and desire to secure by Letters Patent of the United States is:-

In fuse mechanism for projectiles of the char- Z5 acter described a rotatable regulating ring, a timing disk, a central shaft, means solidly connecting said timing disk with said central shaft,

a stirrup connected to said regulating ring, a tenon fixed to the fuse casing embraced by said stirrup, and gearing within said casing operating to rotate said central shaft and thereby said timing disk through said tenon and said casing by the movement imparted to said stirrup by said regulating ring. S5

ANDR vARAUD. 

